USN-7263-1: Firefox vulnerabilities
Publication date
11 February 2025
Overview
Several security issues were fixed in Firefox.
Releases
Packages
- firefox - Mozilla Open Source web browser
Details
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1011,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017, CVE-2025-1018,
CVE-2025-1019, CVE-2025-1020)
Ivan Fratric discovered that Firefox did not properly handle XSLT data,
leading to a use-after-free vulnerability. An attacker could potentially
exploit this issue to cause a denial of service, or execute arbitrary code.
(
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1011,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017, CVE-2025-1018,
CVE-2025-1019, CVE-2025-1020)
Ivan Fratric discovered that Firefox did not properly handle XSLT data,
leading to a use-after-free vulnerability. An attacker could potentially
exploit this issue to cause a denial of service, or execute arbitrary code.
(CVE-2025-1009)
Atte Kettunen discovered that Firefox did not properly manage memory in
the Custom Highlight API, leading to a use-after-free vulnerability. An
attacker could potentially exploit this issue to cause a denial of service,
or execute arbitrary code. (CVE-2025-1010)
Nils Bars discovered that Firefox did not properly manage memory during
concurrent delazification, leading to a use-after-free vulnerability.
An attacker could potentially exploit this issue to cause a denial of
service, or execute arbitrary code. (CVE-2025-1012)
Update instructions
After a standard system update you need to restart Firefox to make all the necessary changes
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 20.04 focal | firefox – 135.0+build2-0ubuntu0.20.04.1 | ||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
References
- CVE-2025-1020
- CVE-2025-1019
- CVE-2025-1018
- CVE-2025-1017
- CVE-2025-1016
- CVE-2025-1014
- CVE-2025-1013
- CVE-2025-1012
- CVE-2025-1011
- CVE-2025-1010
- CVE-2025-1020
- CVE-2025-1019
- CVE-2025-1018
- CVE-2025-1017
- CVE-2025-1016
- CVE-2025-1014
- CVE-2025-1013
- CVE-2025-1012
- CVE-2025-1011
- CVE-2025-1010
- CVE-2025-1009